1992 Honda Accord. Starts fine cold, runs 20-25 minutes in cold weather, then dies. Will not start. 30 minutes later starts right up.

First, try resetting the ECM, by pulling the 7.5 A BACK UP Fuse in the under-hood fuse box for 10 seconds. If the problem does not go away, 1) replace the main relay, which is located under the dash, left of the steering column and hidden by silver cruise control box, which needs to be removed; 2) replace the Ignition Control Module (ICM); and 3) replace the coil. Here's how to replace the ICM and coil:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-46563-4.html#post265896

While you have the distributor open, I would replace the rotor and distributor cap.